Jacelyn: 0.765ct Heart-cut Black Created Opal Dublin Claddagh Promise Ring Silver, 3142A A gorgeous choice for a promise, friendship, commitment or engagement ring and the ideal gift for someone with an October birth date! Features an approx. 6.0mm, 0.75 carat, Heart-cut Black Created Opal solitaire. Made with solid 925 Sterling Silver. Love, loyalty, friendship and commitment are the hallmarks of our Dublin collection of Claddagh rings!